Welcome to namepros. My first advice to you is to focus. Focus until your focus is sharp enough that other people accuse you of having laser or x-ray vision.
My second piece of advice would be to echo natty's advice, above, and don't get discouraged. For example, even if you had a tremendously marketable domain name for sale on ebay last week, I wouldn't have bid since I assume you have no history on ebay (feedback, etc.). The good news is that you've taken the first step and with 3 sales under your belt, you are on your way to building your reputation and credibility. :D
Couple of areas you might think about...
Are you expecting to focus on quality or quantity?
Is your plan to try to sell thousands of names each year at a few dollars each, or will you instead sell fewer names of higher quality for more dollars per each sale? I would argue that there are different tactics that apply, as sell as different operational efficiencies, depending upon which of these models you generally follow.
What kind of TLD's are you selling?
Are you focusing on dot coms (and nets and orgs and info and biz etc.) or other TLD's like country TLDs (.us, .me, .cc, .uk)? If country codes are your specialty you might want to make sure your ebay auctions are available to bidders in those countries for example.
What kind of names are you selling?
There are many good posts here at namepros about the art of domain names (unfortunately there are also many bad ones, but that is the nature of the net I'm afraid). Are you focusing on keywords or are you focusing on "brandable" names which is to say names that are made up words i.e. at one point waaaaay back in time, kleenex was just a made up word. that is, until a company got behind it and "branded" it.
Are you observing intellectual property rights?
There is another post recently about someone who got into some trouble with a name that had nike in it. No man can tell another what to do, but you may find that you sleep better at night if you stay away from trademarked domain names.
Are you timing your ebay auctions correctly?
Used to be a time where it made sense (i.e. dollars) to time your auctions to end on friday during the day or on the weekend preferably sunday. Perhaps widespread growing adoption of mobile browsers will change this in the future, but I think for the most part people are busy busy busy during the week and you may not be cultivating as many bids as possible if you just randomly slap up your auctions at any time.
Do you have accounts with multiple registrars?
No one likes to pay unnecessary transfer fees to transfer a domain from one registrar to another. Do you know which registrars are most widely used by ebay bidders? If not, find out!
Do you have Guitar hero?
If so, enjoy it and rock out. But realize that there is no similar "Domain Name Hero" product that you can buy to make you an instant rock star with domains. I would say it is an art, just like learning to play the guitar, except there is no guitar hero here.
Anyway, sounds like you have a dream. MLK had a dream too, and we all can work on making our dreams come true, hopefully without getting shot. Good luck to you.
Hollywood
